Dispersant, conductive material dispersion and slurry for electrode film
US-2023250342-A1 · Aug 10, 2023 · US
Amides or hydrazides
Amides or hydrazides · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09K23/22 |
| Official title | Amides or hydrazides |
| Display label | Amides or hydrazides |
| Total patents | 77 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 11 |
| 2022 | 10 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 7 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Branched fluorine-containing compound
US-11680037-B2 · Jun 20, 2023 · US
Amphoteric compounds
US-2022356151-A1 · Nov 10, 2022 · US
Amidoamine-based gemini surfactant containing ethoxylate units and a method for oil recovery
US-11459499-B2 · Oct 4, 2022 · US
Dispersant and polishing agent composition
US-2022290008-A1 · Sep 15, 2022 · US
Fluorinated imide salt compound and surfactant
US-11414381-B2 · Aug 16, 2022 · US
Amphoteric compounds
US-11414380-B2 · Aug 16, 2022 · US
Polymeric amidoamine emulsifiers
US-2022220356-A1 · Jul 14, 2022 · US
Rosin-based small molecular weight hydrogelator and its application
US-11352317-B2 · Jun 7, 2022 · US
Multi-amine dispersant made via an anhydride intermediate
US-2022154016-A1 · May 19, 2022 · US
Intra-droplet surface engineering to capture a molecular target
US-2022074930-A1 · Mar 10, 2022 · US
Fatty amine type emulsifiers and their use in asphalt emulsions and applications
US-2022001345-A1 · Jan 6, 2022 · US
Hydrocarbon-containing carboxylic acid, hydrocarbon-containing sulfonic acid, hydrocarbon-containing sulfuric acid ester or salt thereof, and surfactant
US-11198670-B2 · Dec 14, 2021 · US
Intra-droplet surface engineering to capture a molecular target
US-11181521-B2 · Nov 23, 2021 · US
Fluorinated imide salt compound and surfactant
US-2021355080-A1 · Nov 18, 2021 · US
Branched fluorine-containing compound
US-2021355077-A1 · Nov 18, 2021 · US
Branched fluorine-containing compound
US-11104639-B2 · Aug 31, 2021 · US
Aromatic amide dispersant
US-2021238433-A1 · Aug 5, 2021 · US
Aromatic Amide Dispersant
US-2021198500-A1 · Jul 1, 2021 · US
Emulsion, method for the production thereof and use thereof
US-11034878-B2 · Jun 15, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K23/22?
- CPC C09K23/22 is the Cooperative Patent Classification code for “Amides or hydrazides.”
- How many patents are filed under CPC C09K23/22 (Amides or hydrazides)?
- Our database includes 77 publications tagged with this CPC code.
- Is patent activity under CPC C09K23/22 growing?
- Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).